WO2020175412A1 - Aiguille d'injection et dispositif d'injection - Google Patents

Aiguille d'injection et dispositif d'injection Download PDF

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Publication number
WO2020175412A1
WO2020175412A1 PCT/JP2020/007272 JP2020007272W WO2020175412A1 WO 2020175412 A1 WO2020175412 A1 WO 2020175412A1 JP 2020007272 W JP2020007272 W JP 2020007272W WO 2020175412 A1 WO2020175412 A1 WO 2020175412A1
Authority
WO
WIPO (PCT)
Prior art keywords
injection needle
needle
injection
needles
opening
Prior art date
Application number
PCT/JP2020/007272
Other languages
English (en)
Japanese (ja)
Inventor
教幸 小粥
昭典 稲生
野中　勇
Original Assignee
Ａｓｔｉ株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ａｓｔｉ株式会社 filed Critical Ａｓｔｉ株式会社
Priority to JP2021502228A priority Critical patent/JP7512248B2/ja
Priority to US17/431,954 priority patent/US20220152316A1/en
Publication of WO2020175412A1 publication Critical patent/WO2020175412A1/fr

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/178—Syringes
    • A61M5/31—Details
    • A61M5/32—Needles; Details of needles pertaining to their connection with syringe or hub; Accessories for bringing the needle into, or holding the needle on, the body; Devices for protection of needles
    • A61M5/3295—Multiple needle devices, e.g. a plurality of needles arranged coaxially or in parallel
    • A61M5/3298—Needles arranged in parallel
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
    • A61M5/158—Needles for infusions; Accessories therefor, e.g. for inserting infusion needles, or for holding them on the body
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/178—Syringes
    • A61M5/31—Details
    • A61M5/32—Needles; Details of needles pertaining to their connection with syringe or hub; Accessories for bringing the needle into, or holding the needle on, the body; Devices for protection of needles
    • A61M5/34—Constructions for connecting the needle, e.g. to syringe nozzle or needle hub
    • A61M5/344—Constructions for connecting the needle, e.g. to syringe nozzle or needle hub using additional parts, e.g. clamping rings or collets
    • A61M5/345—Adaptors positioned between needle hub and syringe nozzle

Definitions

  • the present invention relates to an injection needle having a plurality of needles and an injection device, and more particularly, to an injection needle devised so as to have a simple structure and be easily manufactured.
  • Patent Documents 1 to 4 disclose the structure of this type of multi-needle.
  • the drug solution injection needle according to the invention described in Patent Document 1 is composed of a drug solution injection needle body and three needles attached to the drug solution injection needle body. A space is formed on the base end side of the drug solution injection needle body, and the base end of the syringe is inserted into the space.
  • the multi-needle according to the invention described in Patent Document 2 includes a needle hub, and this needle hub is composed of a first body and a second body. A plurality of needles are accommodated in the first main body, a space is formed in the second main body, and the tip of the syringe is inserted into the space.
  • the injection needle according to the invention described in Patent Document 3 is composed of a needle base, a fitting housing portion, a needle tube shield portion, and the like, and a plurality of needles are attached to the needle base.
  • a space is formed on the side of the fitting storage part, and ⁇ 2020/1754 12 2 ⁇ (: 170? 2020 /007272
  • the tip of the syringe is inserted.
  • the skin permeation enhancing device according to the invention described in Patent Document 4 includes a support portion and a connecting member, and the support portion has a plurality of cannulas attached thereto, and the connecting member is also provided. A space is formed in the space, and the tip of the syringe is inserted into the space.
  • Patent Document 1 Patent No. 6 0 6 8 0 5 7
  • Patent Document 2 Special Table 2 0 1 1-5 0 9 7 3 5 Publication
  • Patent Document 3 JP 2018_4 7 2 2 7
  • Patent Document 4 Patent No. 4 8 3 6 3 9 2 Publication
  • the chemical solution injection needle main body is composed of a single member and the structure is simple, but there was a problem that the number of needles and the pitch are limited. ..
  • the present invention has been made based on such a point, and an object of the present invention is to provide an injection needle and an injection device having a plurality of needles, having a simple structure and easily manufactured. To provide.
  • an injection needle according to claim 1 of the present invention comprises a needle base having a drug solution storage space and a plurality of needles attached to the needle base and having their base ends communicating with the drug solution storage space. And a needle base body having an opening for opening the drug solution storage space in a direction orthogonal to an axial direction of the needle, and a needle base body of the needle base body. It is characterized by comprising: a lid member that closes the opening.
  • the injection needle according to claim 2 is characterized in that, in the injection needle according to claim 1, the opening is for removing a slide mold for molding the drug solution containing space.
  • the injection needle according to claim 3 is the injection needle according to claim 1 or claim 2, wherein the opening is provided on the side of a shorter side when the cross section of the needle basic body is viewed from above. It is characterized by being present.
  • the injection needle according to claim 4 is the injection needle according to any one of claims 1 to 3, wherein a concave portion is formed in the needle basic body, and the opening is formed in a bottom portion of the concave portion. It is provided, and the recess is formed to be larger than the opening.
  • the injection needle according to claim 5 is the injection needle according to claim 4, wherein the lid member is directed from a base end portion engaged with the recess toward a tip end portion closing the opening. 020/175412 4 ⁇ (: 170? 2020 /007272
  • an injection needle according to claim 6 is the injection needle according to any one of claims 1 to 5, characterized in that the sealing material is a solidified sealant.
  • the injection needle according to claim 7 is the injection needle according to claim 6, characterized in that the sealant is an adhesive.
  • the injection needle according to claim 8 is the injection needle according to any one of claims 1 to 5, characterized in that the needle base body and the lid member are integrated in advance. ..
  • the injection needle according to claim 9 is the injection needle according to any one of claims 1 to 8, characterized in that the plurality of needles are arranged in a plurality of vertical rows/a row in a horizontal direction. It is a thing.
  • the injection needle according to claim 10 is the injection needle according to any one of claims 1 to 8, wherein the plurality of needles are arranged in a plurality of rows/a plurality of rows in the evening. It is characterized by.
  • the injection needle according to claim 11 is the injection needle according to any one of claims 1 to 10, wherein the tips of the plurality of needles are inclined blade surfaces.
  • the orientation is characterized by being irregular.
  • the injection needle according to claim 12 is the injection needle according to any one of claims 1 to 10, characterized in that the directions of the inclined blade surfaces of the plurality of needles are regular. To do.
  • the injection needle according to claim 13 is the injection needle according to claim 12, characterized in that the inclined blade surfaces of the plurality of needles are all oriented in the same direction.
  • the injection needle according to claim 14 is the injection needle according to claim 12, wherein the plurality of needles are arranged in vertical multiple rows/horizontal multiple rows, and the inclination of other needles excluding the central needle
  • the blade surface is characterized by being directed radially inward or radially outward. ⁇ 2020/1754 12 5 ⁇ (: 170? 2020 /007272
  • An injection needle according to claim 15 comprises a syringe, and the injection needle according to any one of claims 1 to 14 attached to the tip of the syringe. To do.
  • a needle base having a drug solution storage space, and a plurality of needle bases attached to the needle base and having their base ends communicating with the drug solution storage space
  • An injection needle comprising a plurality of needles, the needle base having an opening for opening the drug solution storage space in a direction orthogonal to the axial direction of the needle, and the needle base. Since it is composed of a lid member that closes the opening of the body, it has a plurality of needles, and the structure is simple and easy to manufacture.
  • the slide mold can also be removed. As a result, the above effect can be made more reliable.
  • the opening is provided on a side of a shorter side when the cross section of the needle basic body is viewed from above. Therefore, the size of the opening can be reduced and the size of the lid member can be reduced.
  • a recess is formed in the needle basic body, and the opening is provided at a bottom of the recess. Since the recess is provided and the recess is formed larger than the opening, it is easy to close the opening with the lid member.
  • the lid member is tapered from a base end portion engaged with the recess toward the tip end portion closing the opening. Since it is formed, the above effect can be further enhanced.
  • the sealing material is a solidified sealant. ⁇ 0 2020/1754 12 6 ⁇ (: 17 2020 /007272
  • the above-mentioned sealant is an adhesive, so that the above effect can be further secured.
  • the injection needle according to claim 8 in the injection needle according to any one of claims 1 to 5, since the needle base body and the lid material are integrated in advance, the number of parts is reduced. It is possible to facilitate the assembly.
  • the injection needle according to claim 9 in the injection needle according to any one of claims 1 to 8, since the plurality of needles are arranged in a plurality of vertical rows/a row in a horizontal direction, a plurality of needles are provided. It is possible to easily manufacture an injection needle in which the above-mentioned needles are aligned in a horizontal row.
  • the injection needle according to claim 10 in the injection needle according to any one of claims 1 to 8, since the plurality of needles are arranged in a plurality of vertical rows/a plurality of horizontal rows, It is possible to easily manufacture an injection needle in which a plurality of needles are arranged vertically and horizontally.
  • the injection needle according to claim 11 is the injection needle according to any one of claims 1 to 10, wherein the tips of the plurality of needles are inclined blade surfaces. Since the surface orientation is irregular, the drug solution can be injected from various directions.
  • the inclined blade surfaces of the plurality of needles have a regular orientation, Can be injected in a predetermined direction.
  • the drug solution is injected in a predetermined direction. can do.
  • the plurality of needles are arranged in vertical multiple rows/horizontal multiple rows, and other needles other than the central needle are included. Since the inclined blade surface is directed radially inward or radially outward, the drug solution can be injected in a predetermined direction. ⁇ 2020/1754 12 7 ⁇ (: 170? 2020 /007272
  • the injection device according to claim 15 comprises a syringe and the injection needle according to any one of claims 1 to 14 attached to the front end of the syringe, An injection device with an injection needle including a plurality of needles can be easily provided.
  • Fig. 1 is a view showing a first embodiment of the present invention, and is a front view showing a usage state of an injection needle and an injection device.
  • FIG. 2 shows the first embodiment of the present invention.
  • Fig. 2 ( 3 ) is a perspective view of the injection needle as viewed from the upper front side
  • Fig. 2 ( ⁇ ) is the injection needle as viewed from the lower rear side.
  • FIG. 3 is a view showing the first embodiment of the present invention
  • FIG. 3 ( 3 ) is a front view of the injection needle
  • FIG. 3(b) is a right side view of the injection needle.
  • FIG. 4 is a diagram showing the first embodiment of the present invention and is a rear view of the injection needle.
  • FIG. 5 is a diagram showing the first embodiment of the present invention, in which Fig. 5 ( 3 ) is a sectional view of Fig. 3 ( ⁇ ) ⁇ ! — V 3, and Fig. 5 (b) is V of Fig. 3 (a).
  • FIG. 3 is a cross-sectional view of a swallow and a swallow.
  • FIG. 6 is a view showing the second embodiment of the present invention and is a front view showing a usage state of the injection needle and the injection device.
  • Fig. 7 is a view showing a second embodiment of the present invention
  • Fig. 7 ( 3 ) is a perspective view of the injection needle as viewed from the upper front side
  • Fig. 7 ( ⁇ ) is the injection needle as viewed from the lower rear side.
  • FIG. 8 is a view showing the second embodiment of the present invention and is a front view of an injection needle.
  • FIG. 9 is a view showing the second embodiment of the present invention
  • FIG. 9 ( 3 ) is a plan view of the injection needle
  • FIG. 9 (10) is a bottom view of the injection needle.
  • FIG. 10 A diagram showing a second embodiment of the present invention, which is a cross-sectional view taken along line XX of FIG. 8.
  • FIG. 11 is a view showing the third and fourth embodiments of the present invention
  • FIG. 11 ( 3 ) is a longitudinal sectional view of the injection needle according to the third embodiment
  • FIG. FIG. 9 is a vertical cross-sectional view of the injection needle according to the fourth embodiment.
  • FIG. 12 is a view showing the fifth and sixth embodiments of the present invention, and FIG. 12 ( 3 ) shows the fifth embodiment. ⁇ 2020/1754 12 8 ⁇ (: 170? 2020 /007272
  • FIG. 12 (b) is a vertical sectional view of the injection needle according to the embodiment
  • FIG. 12 (b) is a vertical sectional view of the injection needle according to the sixth embodiment.
  • FIG. 13 is a view showing the seventh embodiment of the present invention
  • FIG. 13(a) is a longitudinal sectional view of the injection needle before the opening is closed by the lid member
  • FIG. 13(b) is It is a longitudinal cross-sectional view of the injection needle in a state in which the opening is closed by the lid material.
  • FIG. 14 A view showing an eighth embodiment of the present invention, in which FIG. 14(a) is a longitudinal sectional view of the injection needle before the opening is closed by the lid member, and FIG. 14(b) is It is a longitudinal cross-sectional view of the injection needle in a state in which the opening is closed by the lid material.
  • FIG. 15 A view showing a ninth embodiment of the present invention, in which FIG. 15 ( 3 ) is a longitudinal sectional view of the injection needle before the opening is closed, and FIG. 15 () is a portion of the lid material.
  • Fig. 15 ( ⁇ ) is a vertical cross-sectional view of the injection needle in a welded state, and Fig. 15 ( ⁇ ) is a vertical cross-sectional view of the injection needle in a state where the opening is closed by a lid material.
  • Fig. 16 is a view showing the tenth embodiment of the present invention, in which Fig. 16 ( 3 ) is a longitudinal sectional view of the injection needle before the opening is closed, and Fig. 16 () is a cover material.
  • Fig. 16 ( ⁇ ) is a vertical cross-sectional view of the injection needle in a state where the parts are welded, and Fig. 16 ( ⁇ ) is a vertical cross-sectional view of the injection needle in a state in which the opening is closed by the lid material.
  • FIG. 17 is a view showing the eleventh embodiment of the present invention and is a vertical sectional view of an injection needle.
  • FIG. 18 A view showing a 12th embodiment of the present invention, wherein FIG. 18(a) is a longitudinal sectional view of the injection needle before the opening is closed by the lid member, and FIG. 18(b) is FIG. 4 is a vertical cross-sectional view of the injection needle with the opening closed by the lid member.
  • FIG. 19 is a view showing the thirteenth embodiment of the present invention and is a bottom view of the injection needle. MODE FOR CARRYING OUT THE INVENTION
  • the injection device 1 is composed of a syringe 3 and an injection needle 5 connected to the tip of the syringe 3.
  • the syringe 3 is composed of a cylinder 4 and a piston (not shown) movably accommodated in the cylinder 4.
  • the chemical liquid 7 is sucked and held in the cylinder 4 and ⁇ 2020/1754 12 9 ⁇ (: 170? 2020 /007272
  • the drug solution 7 sucked and held in the cylinder 4 is supplied to the injection needle 5 side for injection.
  • the injection needle 5 includes a needle base 11 and a plurality of needles attached to the needle base 1 1 (in the case of this embodiment, 5 columns in the vertical direction and 1 row in the horizontal direction). It consists of a total of 5 needles 1 and 3).
  • the needle base 11 includes a needle base body 15 and a lid member 17 for closing an opening formed on the needle base body 15 to be described later. It consists of
  • the needle basic body 15 has a substantially hollow cylindrical cylindrical connection portion 19 at the upper portion in FIG. 3, and the syringe connection portion 19 has a hollow portion 2 2 Are formed.
  • the tip of the cylinder 4 of the cylinder 3 is kneaded into the hollow portion 22.
  • the hollow portion 22 is formed in a tapered shape so that the diameter is slightly reduced from the upper side to the lower side in FIG. It is formed in a tapered shape so as to be slightly reduced in diameter toward. As a result, the cylinder 4 is kneaded into the hollow portion 22 without any clearance.
  • Luer lock connection protrusions 20 and 20 are provided on both sides of the distal end outer peripheral portion of the syringe connection portion 19 opposite to each other by 180 ° .
  • the projections 20 and 20 for connecting the luer lock are used, and the injection needle 5 and the above-mentioned not shown. Connect the syringe.
  • 5 needle connection parts 21 are arranged at equal intervals in 5 rows and 1 row (left and right direction in Fig. 3 ( 3 )).
  • One of the needles 13 described above is installed in each of the needle connecting portions 21.
  • convex portions 2 3 and 2 3 are provided at both ends in the width direction of the needle basic body 15 (left and right directions in FIG. 3( a )). These convex portions 23 and 23 function as locking portions when the cap (not shown) is capped. ⁇ 2020/1754 12 10 ⁇ (: 170? 2020 /007272
  • a chemical solution storage space 31 is provided in the needle basic body 15 and a communication hole 3 2 that connects the chemical solution storage space 3 1 and the hollow portion 2 2 is formed. It is provided.
  • the drug solution 7 supplied from the syringe 3 side is supplied into the drug solution storage space 3 1 through the communication hole 3 2 and then supplied to all needles 13.
  • a concave portion 33 is provided on the back side of the basic needle body 15 (right side in FIG. 5 (depression)).
  • a direction orthogonal to the axial direction of the needle 13 in the chemical liquid storage space 31 center vertical direction in Fig. 5 (13) (right direction in the center in Fig. 5 (13)), that is, the bottom 3 of the recess 3 3
  • the opening 5 is provided in the opening 5.
  • the size of the opening 37 is set smaller than the size of the recess 33.
  • a closing projection 39 for closing the opening 37 is formed on the tip side (left side in Fig. 5(b)) of the lid 17 and is directed toward the tip. (Toward the left side in Fig. 5 (b)) It has a tapered shape.
  • the closing convex portion 39 is kneaded into the opening portion 33.
  • the lid 17 is fixed to the opening 37 by adhesion, welding, press fitting, or the like.
  • edge of the recess 33 (the right side in Fig. 5 (slung)) is chamfered to increase the diameter, making it easier to engage the lid 17 with the recess 33. There is.
  • the opening 33 functions as a die outlet for taking out a sliding die (core) for forming the chemical solution containing space 31 when the needle basic body 15 is formed. Further, the chemical solution 7 remains in the chemical solution storage space 31 without being used, and therefore, it is desirable that the volume thereof be as small as possible.
  • the height of the drug solution storage space 31 is set slightly higher than the protruding height of the needle 13 and ), the width of the drug solution storage space 31 is set slightly larger than the outer diameter of the needle 13. As a result, the volume of the drug solution storage space 31 is as small as possible while maintaining the function of supplying the drug solution 7 to all the needles 13.
  • the slide type (core) for molding the hollow part 22 and the communication hole 32 is ⁇ 2020/1754 12 1 1 ⁇ (: 170? 2020 /007272
  • the needle base body 15 is connected to the chemical liquid storage space 31 and is connected to the tip end surface of the needle connection portion 21 (Fig. A through hole 4 1 for needle attachment opened on the surface) is formed.
  • the needle 13 is inserted and fixed in the needle mounting through hole 41.
  • the tip of the through hole 41 for needle attachment (Fig. 5 (bottom) middle lower side) is gradually expanded toward the tip side (Fig. 5 (bottom) middle lower side).
  • the injection needle 5 is fixed with an adhesive or the like.
  • a concave portion 51 is provided on the front side of the needle basic body 15 (left side in FIG. 5 (deposit)).
  • the recess 51 is provided for the purpose of stealing or reducing the weight to prevent sink marks during molding.
  • the tip of the needle 13 is provided with an inclined blade surface 1 33, and in the case of this embodiment, the inclined blade surfaces 1 3 3 of the 5 needles 13 all face in the same direction. ing.
  • the tip portion of the cylinder 4 of the syringe 3 is kneaded into the hollow portion 22 of the syringe connection portion 19 of the injection needle 5.
  • the injection needle 5 is integrally attached to the tip of the syringe 3.
  • the so-called multi-needle injection needle 5 including a plurality of needles 13 can be simplified in structure and production.
  • the needle base 11 of the injection needle 5 is not a single component, it is composed of the needle basic body 15 and the lid member 17, and the configuration is simple.
  • the needle basic body 15 has a shape including almost all parts of the needle base 11 and is a component that can be called almost a single component, whereby the lid member 17 can be made small. And, it is possible to make the component of an extremely simple shape, and the configuration is simplified as a whole.
  • each of the needle basic body 15 and the lid member 17 may be molded by, for example, injection molding, their manufacture is easy.
  • the needle basic body 15 is provided with the opening 37, it is easy to take out the slide mold (core) for molding the chemical solution containing space 31. Further, since the lid member 17 is small and has an extremely simple shape as described above, its manufacture is easy.
  • the drug solution storage space 3 1 which finally becomes the dead space is set as small as possible while maintaining the required function, and therefore remains without being injected.
  • the chemical solution 7 can be reduced.
  • the opening 37 is made small by making the chemical solution storage space 31 as small as possible, and closing such a small opening 37 is troublesome, but in the case of the present embodiment, Has a relatively large recessed part 33, and the opening 37 is located on the bottom of the recessed part 33.
  • the lid 17 has a tapered shape from the base end side to the closing convex part 39 of the tip. Therefore, by engaging the base end portion of the lid member 17 with the relatively large concave portion 33, the closing convex portion 39 can be easily kneaded into the opening portion 37. The work of closing the opening 37 can be facilitated.
  • the injection needle 5 of the present embodiment is a so-called “multi-needle", in which five injection needles 13 are arranged in 5 rows in the vertical direction and 1 row in the horizontal direction, a wide range of injections can be made at once. What to do ⁇ 2020/1754 12 13 ⁇ (: 170? 2020 /007272
  • the injection device 101 is composed of a syringe 3 and an injection needle 105 connected to the tip of a cylinder 4 of the syringe 3. There is.
  • the drug solution 7 is sucked and held in the cylinder 4, and the drug solution 7 in the cylinder 4 is supplied to the injection needle 105 side by pressing a piston (not shown) of the syringe 3.
  • the injection needle 105 includes a needle base 11 1 and a plurality of needles attached to the needle base 1 1 1 (in the case of this embodiment, It consists of 3 rows / 3 rows and a total of 9 needles 1 1 3 and.
  • the needle base 1 11 is composed of a needle base body 1 15 and a lid material 1 17 for closing an opening of the needle base body described later. ..
  • the needle basic body 1 15 is provided with a substantially hollow cylindrical syringe connection portion 1 19 on the upper side in the drawings.
  • a hollow portion 12 2 is formed in the syringe connection portion 1 19 and the tip of the cylinder 4 of the syringe 3 is kneaded into the hollow portion 1 2 2.
  • the hollow portion 12 2 is formed in a taper shape such that the diameter is slightly reduced from the upper side to the lower side in FIG. Is tapered so that the diameter is slightly reduced toward the tip.
  • the cylinder 4 is kneaded into the hollow portion 1 2 2 without any gap.
  • Luer lock connection projections 120, 120 are provided on both sides of the outer periphery of the distal end of the syringe connection part 1 19 facing each other by 180 ° .
  • the above-mentioned injection needle 1 0 5 and the syringe are connected.
  • 2 3 is provided in the shape of a brim and 4 convex parts 1 2 4, 1 2 4, 1 2 4,
  • the above four convex portions 1 2 4, 1 2 4, 1 2 4 and 1 2 4 are engaging convex portions with which the engaging concave portion provided on the cap side engages when the cap (not shown) is capped.
  • the convex portion 1 2 4 functions as a stopper with which the tip of the cap contacts.
  • a chemical solution storage space 1 31 is provided in the needle basic body 1 15.
  • the chemical liquid storage space 131 is set to have a volume as small as possible while maintaining the necessary functions.
  • a concave portion 1 3 3 is provided on the front side (left side in FIG. 10) of the needle basic body 1 15.
  • Parts 1 3 7 are provided.
  • the size of the opening 1 37 is set smaller than the size of the recess 1 3 3.
  • the lid member 117 is tapered toward the tip side (right side in FIG. 10). By engaging the lid member 117 with the recessed portion 133, the opening 1337 is closed by the tip of the lid member 117. Since it is only necessary to engage the lid member 1 17 with the larger recessed portion 1 3 3 with respect to the opening 1 3 7, the work is easy.
  • the lower side of the above-mentioned chemical solution containing space 1 31 of the above-mentioned needle basic body 1 15 (Fig. 9 () front side in the vertical direction in the middle paper surface) is A plurality of needle mounting through-holes 1 41 are provided (in the case of this embodiment, a total of 9 rows in 3 rows and 3 columns).
  • the needles 1 1 3 described above are attached to the needle attaching through holes 1 4 1, respectively.
  • the tip part of the needle mounting through-hole 1 41 (lower side in Fig. 10) is expanded toward the tip side (lower side in Fig. 10). It is easy to insert the needle 13 into the needle mounting through hole 1 41 from the side (lower side in Fig. 10).
  • a slanting blade surface 1 1 3 3 is formed at the tip of the above-mentioned needles 1 13 and the slanting blade surface of the 8 needles 1 13 placed outside in FIG. 9 (a) is It faces inward in the radial direction.
  • the inclined blade surface 1 1 1 3 3 of the central needle 1 1 3 is oriented in any direction.
  • the opening 37 of the chemical liquid storage space 31 is provided on the wide side (long side of the rectangular cross section) of the chemical liquid storage space 31.
  • the opening 33 is provided on the narrow side of the chemical solution storage space 31 (the short side of the rectangular cross section, the left end in Fig. 11 (3)).
  • the concave portion 33 is provided and the opening portion 37 is provided in the bottom portion thereof, but in the present embodiment, such a concave portion is not provided.
  • a molded resin product is used as the lid member 17.
  • the lid member 17 of this embodiment is made of, for example, resin or aluminum. It is an adhesive tape.
  • the same effects as in the case of the first embodiment can be obtained, and the size of the opening 37 is reduced, and accordingly, the size of the lid member 17 is also reduced. Complete. Further, since the lid member 17 is not a resin molded product but an adhesive tape made of resin or aluminum, the manufacturing is easy and the assembling work is also easy. Also, only one molded product is required.
  • the opening 1 3 7 is provided at the bottom of the recess 1 3 3. ⁇ 2020/1754 12 16 ⁇ (: 170? 2020 /007272
  • a recess is not provided in this embodiment.
  • a molded resin product is used as the lid member 117 for closing the opening 13.7, but the lid member 117 of this embodiment is used. Is an adhesive tape made of resin or aluminum.
  • the lid member 17 is not a resin molded product but a resin or aluminum adhesive tape. This simplifies manufacturing and simplifies assembly work. Also, only one molded part is required.
  • an adhesive tape made of resin or aluminum is used as the lid material 117, but in the case of this embodiment, an adhesive is used.
  • the cover material 17 is attached to the needle basic body 15. ⁇ 2020/1754 12 17 ⁇ (: 170? 2020 /007272
  • the slide mold in the chemical liquid containing space 33 is pulled out and then bent and welded or adhered to close the opening 37.
  • the same effect as in the case of the third embodiment can be obtained. Further, since the lid material 17 is not provided with another molded product, tape, adhesive, etc., the manufacturing is easy and the assembling work is also easy.
  • FIG. 14(a) the lid material 117 is integrally provided on the basic needle body 115. Then, as shown in FIG. 14 (distance), the slide mold in the chemical liquid storage space 1 33 3 is pulled out and then bent and welded or adhered to close the opening 1 37.
  • the same effect as in the case of the fourth embodiment can be obtained. Further, since the lid member 17 is not made as a separate molded product, it is easy to manufacture and the assembling work is also easy.
  • FIG. 15(a) the portion of the basic needle body 15 in which the opening 37 is formed is projected.
  • FIG. 15 (well) for example, the above-mentioned protruding portion is welded by an ultrasonic welder 201.
  • Fig. 15 ( ⁇ ) that portion becomes the lid material 17 and the opening portion 37 is closed.
  • FIG. 16(a) the portion of the basic needle body 1 15 in which the opening 1 37 is formed is projected.
  • FIG. 16 (well) for example, the above-mentioned protruding portion is welded by an ultrasonic welder 201.
  • Fig. 16 ( ⁇ ) that portion becomes the lid material 117, and the opening 1337 is closed.
  • the same effect as in the case of the fourth embodiment can be obtained. Further, since the lid member 117 is not made as a separate molded product, it is easy to manufacture and the assembling work is also easy.
  • an opening is provided on one side of the chemical liquid storage space 31 so as to be closed by the lid member 17, but in the case of the first embodiment, there is an opening on both sides. It is provided so that it is closed by the lid members 17 and 17.
  • the core for molding the chemical liquid storage space 3 1 can be squeezed through the openings on both sides, so that the core itself can be made thin or have a small diameter. You can reduce 1 to make the dead space even smaller.
  • the lid member 17 is adhered or welded to close the opening 37, but in the case of the 12th embodiment, the lid member 17 Protrusions 1 51 are provided on the projections, and the protrusions 1 51 are pressed into the openings 37.
  • the rest of the configuration is the same as in the case of the third embodiment, and the same parts in the drawings are assigned the same reference numerals and explanations thereof are omitted.
  • the second embodiment it is conceivable to use two cores 1 61, 1 6 1 as shown by phantom lines in the figure in order to form the chemical liquid storage space 1 3 1.
  • the core 1 6 1 is in the shape of a Nami, and the resin will enter into the shaded area during molding.
  • the present invention is not limited to the first to 13th embodiments.
  • the needle base is composed of the needle basic body and the lid member, but the present invention is not limited to this, and various two-part structures are envisioned. .. For example, a vertically split structure is also conceivable.
  • the case where the total number of needles is 5 rows and 1 row in total, and the total number of needles is 3 rows and 3 rows in total and 9 needles is taken as an example.
  • the number of needles and the arrangement of the needles may be various.
  • the direction of the inclined blade surface of the needle is set regularly, but it may be set irregularly.
  • the number of openings of the chemical liquid storage space is set to 1 and 2, but the number of openings may be 3 or more.
  • the dead space can be appropriately reduced by combining the needle arrangement and the core shape.
  • the integrally molded lid member is bent to close the opening, but a thin wall portion may be provided at any place of the main body. ⁇ 2020/1754 12 20 boxes (: 170? 2020 /007272
  • a lid material may be integrally provided, and the lid material may be cut or torn, and the adhesive material may be adhered, welded, or press-fitted into the opening.
  • the present invention relates to, for example, an injection needle and an injection device used for injection into the skin, and more particularly, to an injection needle that has a plurality of needles and has a simple structure and is easily manufactured. For example, it is suitable for an injection needle and an injection device used for cosmetic treatment.

Landscapes

  • Health & Medical Sciences (AREA)
  • Vascular Medicine (AREA)
  • Engineering & Computer Science (AREA)
  • Anesthesiology (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Hematology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)

Abstract

Le but de la présente invention est de fournir : une aiguille d'injection qui est pourvue d'une pluralité d'aiguilles, a une structure simple, et peut être facilement produite ; et un dispositif d'injection. Cette aiguille d'injection est pourvue d'une base d'aiguille qui est pourvue d'un espace de stockage de médicament liquide et d'une pluralité d'aiguilles qui sont fixées à la base d'aiguille et ont une extrémité proximale communiquant avec l'espace de stockage de médicament liquide, l'aiguille d'injection étant caractérisée en ce que la base d'aiguille comprend : un corps de base d'aiguille pourvu d'une ouverture qui s'ouvre dans l'espace de stockage de médicament liquide dans la direction perpendiculaire à la direction axiale des aiguilles ; et d'un matériau de couvercle destiné à fermer l'ouverture du corps de base d'aiguille.
PCT/JP2020/007272 2019-02-25 2020-02-24 Aiguille d'injection et dispositif d'injection WO2020175412A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2021502228A JP7512248B2 (ja) 2019-02-25 2020-02-24 注射針と注射装置
US17/431,954 US20220152316A1 (en) 2019-02-25 2020-02-24 Injection needle

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2019-031144 2019-02-25
JP2019031144 2019-02-25

Publications (1)

Publication Number Publication Date
WO2020175412A1 true WO2020175412A1 (fr) 2020-09-03

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US (1) US20220152316A1 (fr)
JP (1) JP7512248B2 (fr)
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WO2012127856A1 (fr) * 2011-03-23 2012-09-27 Nanbu Plastics Co., Ltd. Dispositif de médication percutané et formation d'aiguille utilisée pour le dispositif
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WO2018181639A1 (fr) * 2017-03-31 2018-10-04 Ａｓｔｉ株式会社 Puce à micro-aiguilles et procédé de production de puce à micro-aiguilles

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KR100902133B1 (ko) * 2008-01-14 2009-06-10 최종수 멀티 니들
KR20110013796A (ko) * 2009-08-03 2011-02-10 진세훈 진피 재생용 멀티 주사바늘
RU2539991C2 (ru) 2009-12-16 2015-01-27 Кронтек Фарма Аб Впрыскивающие игла и устройство
WO2013065235A1 (fr) * 2011-11-02 2013-05-10 南部化成株式会社 Dispositif d'administration transdermique de médicament et aiguille d'injection de solution médicamenteuse utilisée dans ledit dispositif
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Publication number Priority date Publication date Assignee Title
JP2003088584A (ja) * 2001-09-19 2003-03-25 Masayuki Nakao 注射針及びその製造方法
WO2012127856A1 (fr) * 2011-03-23 2012-09-27 Nanbu Plastics Co., Ltd. Dispositif de médication percutané et formation d'aiguille utilisée pour le dispositif
WO2015115455A1 (fr) * 2014-01-29 2015-08-06 Ａｓｔｉ株式会社 Unité de micro-aiguille et dispositif d'injection
JP2015198786A (ja) * 2014-04-08 2015-11-12 Ａｓｔｉ株式会社 マイクロニードルユニット
WO2018181639A1 (fr) * 2017-03-31 2018-10-04 Ａｓｔｉ株式会社 Puce à micro-aiguilles et procédé de production de puce à micro-aiguilles
JP2018047227A (ja) * 2017-08-01 2018-03-29 南部化成株式会社 注射針

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JP7512248B2 (ja) 2024-07-08
JPWO2020175412A1 (ja) 2021-12-23
US20220152316A1 (en) 2022-05-19

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